Apparatus for use in the cleaning of carpets and the like by suction.



PA'TENTEN JULY 16, 1907'.

s. BUDER. APPARATUS FOR USE IN THE CLEANING 0F GARPETS AND THE LIKE BY SUCTION.

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' cleansing; Fig. 3 cated in Fig. 1.

lSIEGF-RIEDBUDER'OFE liALE,NSEE,. NEAR'-BERLIN, eERMAii-Y.

To all whom it. may concern: 5

Be it known-that I, swarm Burma, a subject of v the Emperor of Germany, residing at Ha'lensee, near Berlin, Germany, have invented certain new and use--- This invention relates to devices in the nature of air. pumps especially designed for exhausting air through pipes for cleaning purposes, such as the pneumatic system of removing the dust and dirt from the interior of houses and from the carpetsand furniture therein. I

The invention especially relates to a form of. air

pump", and has for its principal object to provide means whereby the cleansing of the apparatus is facilitated, the particles of dust and dirt and refuse matter drawn into the various parts of the and removable.

In the accompanying drawing showing an embodiment of my invention, Figure 1 isa verticalsection with the parts in normal position, and 2 a similar;

view with certain parts disconnected for the'purpose of is a section on the line AB indi- A pump device in the nature of accordion bellows 1, with top and bottom members 2 and 3, is arranged in'a vertical cylinder 4, having .a top 5 and a bottom 6. The top 5 is removably secured by means of link screw members 7 and 8, a packing. ring 11 being interposed to make the top air-tight. The bottom 6' is similarly secured to the cylinder 4 by link bolts 9'and 10, with the interposition of an air-tight packing ring 12. The-bottom member 3 of the bellows; which is of less diameter than the bottom -6 of the cylinder, is rigidly secured thereto in any suitable manner. A flap valve 13 closes an admission port 14 passing through. the combined bottom member 3 and 6, the valve automatically closing when the pressure in the bellows exceeds that in the port 14. An outlet port 16 in the bottom member is controlled by a flap valve 15, permitting escape of the air in the bellows but preventing admission ofair thereto through this port. A port 17 in the bottom member 6' of the cylinder serves to admit-air to the cylinder, but air is prevented from escaping from this, port by flap valve 17 A chest 22 surrounds these admission ports 13 and '17, and connects with the suction pipe 21. Another port 20 is formed in thebottom 6 of the cylinder that is controlled by a flap valve 19 preventing admission into the cylinder through this port. The ports 20 and 16 open into a-valve chest 24, connecting withan outlet pipe 23. The bottom of the bellows is provided with an aperture 26 that is normally closed by conicalplug 25, but when it is desired to clean out the bellows to remove particles of dust and I Specification of Letters Patent. "'Applloation filed 0mm 10, 905.- SsrlalNo.282,106.

pump being readily accessible srrnns'rus non 'osa cnnsnme or csnrnrs rim Br seer-Ion.

into which projects a pin 35 on a lever 34. The lever reased July 1639 7.

and 28, and passes through the cylinder head 5, being I tightly fitted therein by a packing sleeve 31. 1 The up-" per end oi the rod 29 has a'transverse slotted portion 30 is pivotally supported on a bracket 33 secured to the cylinder 4 at 32. A number of standards 36 secured to the cylinder 4 serve to support the device" with the cylinder a considerable-distance removed from the floororground/ I The operation of the device is'as follows: The oscil- .lationof handle lever 34 will reciprocate the rod 29 and bellows head '2, which will compress and expandthe bellows, thebottom members 3 and 6 beinglocked in the position shown in Fig. 1. When the bellows is {compressed and the head 2advanced towards the head 3, the air will be driven out of the bellows through port 16 and escape through pipe 23. This compression of the bellows will tend to produce a vacuum in the cylinder and the air will be sucked in through port 18 'raising valve 17, which will suck air in through the v pipe 21. Upon the cylinder head 2 rising, the air will be drawn into the bellows through port 14, the flap valve 13 opening, which will also'drawair in through pipe 21. This expansion ofthe bellows will compress the air in the cylinder 4'and it will be forced out through port 20, by the openingoi valve 19, the air passing outthrough pipe 23. By these means a double acting pump is provided iin whichthe air will be con stantly sucked in through pipe 21 and expelled through pipe 23. But when such apparatus is used for pneumatic cleaning, a large amount of dust and refuse matter will bedrawn in with the air, that will tend to collect both inthe bellows and in the cylinder. Thereupon, link screws 9 and 10 are loosened and swung away from the bottom member of the cylinder and bellows, and the bellows is permitted to lower to the position indicated in Fig. 2, its downward position being limited by engagement of the lever 34 with the top 5. This will permit the ready cleansing of the bottom of the cylinder around the bellows and also of the valves in the bottom member. The plug 25 in the bellows is removed and thereby the foreign matter in the bellows around its lower end is readily removable.

Having thus described my invention, I claim:'

1. In adevice of the character described, the combinatlon ofa cylinder, a bellows located in the cylinder and having its bottom secured to the bottom of the cylinder, inlet and'ontlet ports in said bottom for the bellows, a valve controlling each of said ports, an inlet and an outlet port for the cylinder that are located in said bottom, a valve controlling each of said latter ports, said bottom port for the cylinder that are located in said bottom, a valve controlling each of said latter ports, said bottom member of the cylinder and bellows being remov'ably secured to the cylinder, the bellows being provided with a removable plug in its bottom tone-leaning purposes.

3. In a device oi the character described, the combination of a cylinder, 8. bellows operable in the cylinder and having its bottom member of less area than the bottom of the cylinder with such bottom members secured together, an inlet port through said bottom member to the bellows, an admission valve controlling said port, an inlet port for the cylinder located in the said bottom and in proximity to said inlet port for the bellows, an admission valve controlling said latter port, a valve chest surrounding said inlets, a, pipe connecting with said valve chest, an outlet port for the bellows passing through said bottom, an outlet port for the cylinder located in proximity to said outlet port and passing through the bottom and a valve con trolling each of said outlet ports, a valveichest surrounding said outlet ports on the bottom of the cylinder, a pipe connecting with said valve chest, and link screws for removnbly securing said bottom member and the cylinder.

4. In a device of the character described, the combina tion of a cylinder, 0. bellows located in the cylinder and having its bottom secured to the bottom of the cylinder, inlet and outlet ports insaid bottom for the bellows, a valve controlling each of said ports, an inlet and an outlet port-tor the cylinder that are located in said bottom, a valve controlling each of said latter ports, said bottom member of the cylinder and bellows being removably secured to the cylinder, a rod secured to the upper end of said bellows and projecting through the upper end of the cylinder, a transverse slotted member on said rod, and a pivoted lever having a pin operating in said slotted member for reciprocating said rod to operate the bellows.

5. In a device of the character described, the combination of a cylinder, a-bellows operable in the cylinder and having its bottom member of lessarea than the bottom of the cylinder with such bottom members secured together, an inlet port through said bottom member to the bellows, an admission valve controlling said port, an inlet port for the cylinder located in the said bottom and in proximity to said inlet port for the bellows, an admission valve controllingisaid latter port, a valve chest surrounding the said inlets, a pipe connecting with said valve chest, an

outlet port for the bellows passing through said bottom, an outlet port for the cylinder located in proximity to said outlet port and passing through the bottom and a valve controlling each of said outlet ports, a valve chest surrounding said outlet ports on the bottom of the cylinder, a pipe connecting with said valve chest, link screws for removably securing said bottom member and the cylin d'er, a rod secured to the upper end of said bellows and projecting through the upper end of the cylinder, a transverse slotted member on said rod, and a pivoted lever having a pin operating in said slotted member for reclpro cating said rod to operate the bellows.

In testimony whereof I have hereunto set my hand in the presence of the undersigned witnesses, at Berlin, Germany, this 27th day of September 1905.

SIEGFRIED BUDER.

Witnesses:

HENRY HASPER, Wonnmnin HAUPT. 

